Vitamin D may improve cognition for people at risk of dementia

New research suggests that higher vitamin D supplement intake may be associated with better cognitive function in adults with an elevated risk of dementia.

More than 7 million Americans are living with Alzheimer’s dementia. That’s a number projected to reach nearly 13 million by 2050.

In the study of 54 adults with sleep disturbances and mild cognitive impairments (MCI), two hallmarks of early deme...